12408732 has 72 divisors (see below), whose sum is σ = 36752352. Its totient is φ = 3456000.

The previous prime is 12408709. The next prime is 12408743. The reversal of 12408732 is 23780421.

It is a junction number, because it is equal to n+sod(n) for n = 12408696 and 12408705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9732 + ... + 10932.

Almost surely, 2^12408732 is an apocalyptic number.

12408732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12408732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18376176).

12408732 is an abundant number, since it is smaller than the sum of its proper divisors (24343620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12408732 is a wasteful number, since it uses less digits than its factorization.

12408732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259 (or 1254 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 12408732 is about 3522.6030148173. The cubic root of 12408732 is about 231.5132233271.

The spelling of 12408732 in words is "twelve million, four hundred eight thousand, seven hundred thirty-two".